On when button is depressed, off at all other times. Silver contacts. Molded plastic insulator with a protective barrier between terminals. Plasticized body is sealed against moisture and dirt. Two 18 gauge 12" long wire leads. Fits panels up to 1/2" thick.

On when button is depressed, off at all other times. Mairne construction with brass case, plunger and hardware. Chrome plated pushrod and faceplate. Has an oversized facenut which helps prevent accidental actuation. Fits panels up to 1" thick.